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Analog Devices Inc./Maxim Integrated DS1135LU-30
- Part No.:
- DS1135LU-30
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Delay Lines
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1135LU-30.pdf
- Description:
- IC DELAY LINE 30NS 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,653
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Product details
Overview
DS1135LU-30 from Maxim Integrated is a 3V, triple-output silicon delay line IC delivering precise 30ns propagation delays (tPLH/tPHL) across all three buffered outputs with ±1.5ns initial tolerance and ±5.0ns total variation over -40°C to +85°C. It preserves input signal symmetry via leading/trailing edge accuracy and operates within 2.7V–3.6V supply range. Used in high-speed digital timing alignment for FPGA clock deskew and logic synchronization.
For engineers reviewing the DS1135LU-30 datasheet, DS1135LU-30 pinout, DS1135LU-30 application, or DS1135LU-30 equivalent, key selection criteria include guaranteed 30ns delay stability across industrial temperature, 2.5ns max output rise/fall time, 3.3V typical supply operation, and SO-8 (150-mil) package compatibility with vapor-phase and IR reflow processes.
Technical Context
The DS1135LU-30 implements three independent, identically trimmed all-silicon delay paths with buffered CMOS outputs-no external components required. Each path delivers matched tPLH and tPHL delays of exactly 30ns under nominal conditions (25°C, 3.3V), with symmetrical edge preservation ensuring minimal duty-cycle distortion on square-wave inputs.
It replaces legacy DS1033-based designs while maintaining identical 8-pin SO footprint and logic-level compatibility. The device draws ≤10mA active current at 3.6V/1MHz and achieves stable delay performance across full 2.7V–3.6V VCC range and -40°C to +85°C operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Delay per output | 30ns (tPLH/tPHL), matched across all three outputs for synchronous timing alignment |
| Initial delay tolerance | ±1.5ns at 25°C/3.3V - enables deterministic setup/hold margin calculation |
| Temp/voltage tolerance | ±5.0ns over -40°C to +85°C and 2.7V–3.6V - ensures robustness in industrial environments |
| Output rise/fall time | 2.0–2.5ns - supports clean transitions into 74F04-equivalent loads at >100MHz edge rates |
| Supply voltage range | 2.7V–3.6V - compatible with modern 3V logic families and low-power systems |
| Active supply current | 10mA max at 3.6V/1MHz - enables use in power-constrained embedded timing nodes |
| Input capacitance | 10pF - minimizes loading on upstream drivers without requiring series termination |
Pinout & Package
DS1135LU-30 is housed in an 8-pin SOIC package (150-mil width, JEDEC MS-012AC), RoHS-compliant, vapor-phase and IR reflow solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1, IN2, IN3 | Dedicated input signals for each delay channel | CMOS-compatible inputs accepting 0.0V–3.0V swing; no internal pull-ups/downs |
| OUT1, OUT2, OUT3 | Buffered delay outputs | CMOS outputs driving one 74F04-equivalent load; 2.0–2.5ns edge rates |
| VCC | Positive supply rail | Must be decoupled locally; supports 2.7V–3.6V operation with <10mA draw |
| GND | Signal and power reference | Common return for all inputs, outputs, and internal circuitry; requires low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| All-silicon delay architecture | Eliminates quartz or LC-based drift; provides inherent reliability and shock resistance vs. mechanical timing elements |
| Three independent buffered delays | Enables parallel timing correction of multiple signal paths without cross-talk or shared loading effects |
| Precision leading/trailing edge matching | Maintains input duty cycle integrity - critical for clock distribution and data strobe alignment |
| Industrial temperature support | Guaranteed 30ns delay performance from -40°C to +85°C - suitable for outdoor, automotive, and factory-floor applications |
| 3V operation with wide supply margin | Operates down to 2.7V - accommodates brown-out conditions and battery-backed systems |
Applications
| FPGA Clock Deskew | Logic-Level Synchronization |
|---|---|
Use Scenario: Aligning multiple clock domains across FPGA I/O banks to meet setup/hold timing closure. IC Role / Device Role / Timing Role: Provides deterministic 30ns offset to adjust clock arrival skew between adjacent banks. Use Value: Enables deterministic timing margin recovery without custom PCB trace tuning or external PLLs. | Use Scenario: Synchronizing asynchronous control signals (e.g., reset, enable) across multi-chip logic subsystems. IC Role / Device Role / Timing Role: Delays one or more signals to match propagation latency of longest path in combinational logic chain. Use Value: Prevents metastability and race conditions by enforcing consistent signal arrival windows across chips. |
| High-Speed Data Strobe Alignment | Test Equipment Signal Conditioning |
Use Scenario: Matching data valid window to strobe edge in DDR-like source-synchronous interfaces. IC Role / Device Role / Timing Role: Applies calibrated 30ns delay to strobe signal to center it within data eye. Use Value: Increases effective timing margin by up to 60ps per bit lane without altering interface protocol. | Use Scenario: Calibrating trigger timing offsets in automated test equipment (ATE) pattern generators. IC Role / Device Role / Timing Role: Generates repeatable, temperature-stable delay references for stimulus timing alignment. Use Value: Reduces calibration drift over thermal cycles - improves test repeatability and measurement confidence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar silicon delay line applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS1135LZ-30+ | Same die, identical delay specs and pinout; differs only in RoHS suffix and tape/reel packaging | No functional difference; used interchangeably where lead-free compliance is mandatory | Select DS1135LZ-30+ when RoHS certification and Pb-free assembly are required |
| DS1035Z-30+ | 5V-tolerant version (4.5V–5.5V); higher ICC (15mA), slower edges (3.5ns), wider temp tolerance (±7ns) | Requires level-shifting for 3V systems; less precise for high-speed edge alignment | Choose DS1035Z-30+ only if legacy 5V infrastructure or mixed-voltage board design mandates 5V operation |
Compared with DS1135LZ-30+ and DS1035Z-30+, the DS1135LU-30 offers optimal balance of 3V compatibility, 30ns precision, and industrial-grade stability - making it the preferred choice for new 3V embedded timing designs where edge fidelity and thermal consistency are critical.
Availability
DS1135LU-30 is available at Aetrix Electronics and suitable for FPGA clock deskew, logic-level synchronization, and high-speed data strobe alignment requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for DS1135LU-30 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and timing solutions for industrial, communications, and computing applications.
The DS1135L series was developed to replace aging discrete and crystal-based delay solutions with highly stable, all-silicon alternatives optimized for 3V high-speed digital systems.
FAQ
What is the exact delay value and tolerance specification for DS1135LU-30?
The DS1135LU-30 delivers precisely 30ns propagation delay (tPLH and tPHL) on all three outputs. Its initial tolerance is ±1.5ns at 25°C and 3.3V. Over the full industrial temperature range (-40°C to +85°C) and supply voltage range (2.7V–3.6V), total delay variation is guaranteed within ±5.0ns. This is confirmed in Table 1 of the official DS1135L datasheet Rev 8/12.
Is DS1135LU-30 pin-compatible with DS1135LZ-30+?
Yes, DS1135LU-30 is pin-compatible with DS1135LZ-30+. Both share identical 8-pin SOIC (150-mil) package, identical pin assignment (IN1–IN3, OUT1–OUT3, VCC, GND), and identical electrical behavior. The "U" and "Z" suffixes denote different packaging and RoHS compliance codes-not functional differences. DS1135LU-30 may be substituted directly for DS1135LZ-30+ in existing layouts.
Does DS1135LU-30 support 2.5V or 1.8V operation?
No, DS1135LU-30 is specified only for 2.7V to 3.6V operation. The DC Electrical Characteristics table explicitly defines VCC min as 2.7V, and testing is validated down to that threshold. Operation below 2.7V is not characterized and may result in undefined delay behavior, increased jitter, or failure to meet output drive specifications. DS1135LU-30 must be used within its rated 3V domain.
Can DS1135LU-30 be used to delay both rising and falling edges equally?
Yes, DS1135LU-30 guarantees matched tPLH (rising-edge delay) and tPHL (falling-edge delay) of 30ns each, preserving input signal symmetry. The datasheet emphasizes "leading and trailing edge precision" and confirms identical delay values and tolerances for both edges in Table 1 and the DESCRIPTION section. This ensures minimal duty-cycle distortion - a key requirement for clock and strobe applications.
What is the maximum input frequency or pulse width supported by DS1135LU-30?
DS1135LU-30 requires minimum input pulse width (tWI) equal to 100% of the delay value - i.e., ≥30ns - as specified in the AC Electrical Characteristics table. While no explicit maximum frequency is stated, the 2.5ns max output rise/fall time and 1µs test period imply reliable operation up to ~50MHz for repetitive waveforms. For single-shot or burst applications, pulse repetition must allow full power-up (tPU = 1ms) after VCC stabilization.
DS1135LU-30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Taps/Steps:
- -
- Function:
- Multiple, NonProgrammable
- Delay to 1st Tap:
- 30ns
- Tap Increment:
- -
- Available Total Delays:
- 30ns
- Number of Independent Delays:
- 3
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
DS1135LU-30 FAQ
1.How can I place an order for DS1135LU-30 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1135LU-30 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS1135LU-30 reliable?
The price and inventory of DS1135LU-30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1135LU-30 is usually 5 days.
3.What payment methods are accepted for DS1135LU-30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1135LU-30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1135LU-30?
DS1135LU-30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1135LU-30 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS1135LU-30?
For technical support, including DS1135LU-30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1135LU-30 requirements.
6.How does Aetrix verify that DS1135LU-30 is sourced from the original manufacturer or authorized distributors?
All DS1135LU-30 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS1135LU-30 meets industry standards.
7.What is the process for return or replacement of DS1135LU-30?
All DS1135LU-30 units undergo pre-shipment inspection (PSI). If there is an issue with DS1135LU-30, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS1135LU-30 part is unused and in its original packaging.
Return procedure for DS1135LU-30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1135LU-30 Tags
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DS1124U-25+T
Analog Devices Inc./Maxim Integrated
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